package book;

public class BookList {
    private static final int DEAULT_SIZE = 10 ;
    private Book[] books = new Book[DEAULT_SIZE];

    public BookList(){
        books[0] = new Book("三国演义","罗贯中",89,"小说");
        books[1] = new Book("红楼梦","罗贯中",89,"小说");
        books[2] = new Book("西游记","罗贯中",89,"小说");
        this.usedSize=3;
    }

    public Book getBook(int pos){
        return this.books[pos];
    }
    public void  setBook(Book book){
        this.books[usedSize] = book;
    }
    public void  setBook(int pos ,Book book){
        this.books[pos] = book;
    }
    private  int usedSize;//记录数组当中 有多少本书？

    public int getUsedSize() {
        return usedSize;
    }

    public void setUsedSize(int usedSize) {
        this.usedSize = usedSize;
    }
}
